AIPS (Astronomical Information Processing System) handles the processing and display of data from radio interferometers. Data can be collected from any radio telescope array. Images can be exported in FITS format.

Cactus is a general, modular, parallel environment for solving systems of partial differential
equations. The code has been developed over many years by a large international
collaboration of numerical relativity and computational science research groups and can
be used to provide a portable platform for solving any system of partial differential
equations.

Ksetiwatch is a monitoring tool for the SETI@home distributed computing project, which searches for signals of extraterrestrial life. It displays the state of the Seti@home client(s) running on your computer or in your local network, and logs/manages completed work units.

This LCDproc client displays SETI@home status data on a serial display connected to LCDd. It can show current progress and estimated time left, or general data like work units processed and total time.

libAstronomy provides a set of astronomical routines to ease the calculation of ephemerides. It includes mathematical functions to compensate various astronomical phenomena like precession, nutation, etc. The getconstellation routine finds the constellation for a given coordinate. It also calculates the positions of the sun and moon in two different precise ways.

MultiSeti is a utility for the Seti@Home client which helps you manage multiple SETI packets. If you have dial-up access to the Net, want to download more than one packet, and don't want to run clients simultaneously, MultiSeti will run one after another (when one is finished analyzing, it starts seti to analyze the next packet).